Patents by Inventor Stephen D. Mitchell, Sr.

Stephen D. Mitchell, Sr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6386749
    Abstract: A mixing system comprises an elongate rotatable shaft having a rotational axis. A plurality of holding members extend radially outward from the shaft and are configured to rotate with the shaft. The system further includes a plurality of carriers that are insertable between two of the holding members. Each of the carriers includes a plurality of grooves, pairs of which are adapted to receive a cartridge having a chamber for holding a liquid.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: May 14, 2002
    Assignee: Affymetrix, Inc.
    Inventors: Richard P. Watts, Stephen D. Mitchell, Sr.